<template>
  <div>
    <!--面包屑 -->
    <el-breadcrumb separator="/">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!--卡片内容-->
    <el-card class="box-card">
      <!-- 搜索和添加区域 -->
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input v-model="queryInfo.query" placeholder="请输入用户名称" :clearable="true" @clear="getUserList">
            <el-button @click="getUserList" slot="append" icon="el-icon-search"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true" plain>添加用户</el-button>
        </el-col>
      </el-row>
      <!--用户列表区域 -->
      <el-table :data="userlist" border stripe>
        <el-table-column label="#" type="index"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态" width="110px">
          <template slot-scope="scope">
            <!-- {{scope.row}} -->
            <el-switch v-model="scope.row.mg_state" @change="userStateChange(scope.row)"></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作">
          <template slot-scope="scope">
            <!-- 修改按钮 -->
            <el-button type="primary" @click="showEditDialog(scope.row.id)" icon="el-icon-edit" circle plain></el-button>
            <!-- 删除按钮 -->
            <el-button type="danger" @click="removeUserById(scope.row.id)" icon="el-icon-delete" circle plain></el-button>
            <!-- 分配角色按钮 -->
            <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
              <el-button type="warning" @click="setRole(scope.row)" icon="el-icon-tickets" circle plain></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页区域 -->
      <div class="block">
        <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange" :current-page="queryInfo.pagenum" :page-sizes="[1, 2, 5, 10]" :page-size="queryInfo.pagesize" layout="total, sizes, prev, pager, next, jumper" :total="total"></el-pagination>
      </div>
    </el-card>
    <!-- 添加用户的对话框 -->
    <el-dialog title="添加用户" :visible.sync="addDialogVisible" @close="addDialogClosed" width="50%">
      <el-form ref="addFormRef" :model="addForm" :rules="addFormRules" label-width="70px">
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
        </el-form-item>
        <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 修改用户对话框 -->
    <el-dialog title="修改用户信息" :visible.sync="editDialogVisible" width="50%" @close="editDialogClosed">
      <el-form ref="editFormRef" :model="editForm" :rules="editFormRules" label-width="70px">
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" :disabled="true"></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUserInfo">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 分配角色对话框 -->
    <el-dialog title="分配角色" :visible.sync="setRoleDialog" @close="setRoleDialogClosed" width="50%">
      <div>
        <p>当前的用户: {{userInfo.username}}</p>
        <p>当前的角色: {{userInfo.role_name}}</p>
        <p>分配新角色:
          <el-select v-model="selectedRoleId" placeholder="请选择"> 
            <el-option v-for="item in roleList" :key="item.id" :label="item.roleName" :value="item.id">
            </el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialog=false">取消</el-button>
        <el-button type="primary" @click="saveRoleInfo">确定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
  export default {
    data() {
      // 验证邮箱的规则
      var checkEmail = (rule, value, cb) => {
        // 验证邮箱的正则表达式
        const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
        if (regEmail.test(value)) {
          // 合法的邮箱
          return cb()
        }
        cb(new Error('请输入合法的邮箱'))
      }
      // 验证手机号的规则
      var checkMobile = (rule, value, cb) => {
        // 验证手机号的正则表达式
        const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
        if (regMobile.test(value)) {
          return cb()
        }
        cb(new Error('请输入合法的手机号'))
      }
      return {
        //获取用户列表参数对象
        queryInfo: {
          query: '',
          pagenum: 1,
          pagesize: 5,
        },
        userlist: [],
        total: 0,
        //控制添加用户对话框的显示与隐藏
        addDialogVisible: false,
        //添加用户的表单数据
        addForm: {
          username: '',
          password: '',
          email: '',
          mobile: '',
        },
        //添加表单的验证规则对象
        addFormRules: {
          username: [
            {
              required: true,
              message: '请输入用户名',
              trigger: 'blur',
            },
            {
              min: 3,
              max: 10,
              message: '用户名的长度在3到10字符之间',
              trigger: 'blur',
            },
          ],
          password: [
            {
              required: true,
              message: '请输入密码',
              trigger: 'blur',
            },
            {
              min: 6,
              max: 15,
              message: '用户名的长度在6到15字符之间',
              trigger: 'blur',
            },
          ],
          email: [
            {
              required: true,
              message: '请输入邮箱',
              trigger: 'blur',
            },
            {
              validator: checkEmail,
              trigger: 'blur',
            },
          ],
          mobile: [
            {
              required: true,
              message: '请输入手机号码',
              trigger: 'blur',
            },
            {
              validator: checkMobile,
              trigger: 'blur',
            },
          ],
        },
        setRoleDialog: false,
        // 需要被分配角色的用户信息
        userInfo: {},
        // 已选中的角色Id值
        selectedRoleId:'',
        roleList: [],
        //对话框显示/隐藏
        editDialogVisible: false,
        //查询到的用户户信息对象
        editForm: {},
        //修改表单的验证规则对象
        editFormRules: {
          email: [
            {
              required: true,
              message: '请输入邮箱',
              trigger: 'blur',
            },
            {
              validator: checkEmail,
              trigger: 'blur',
            },
          ],
          mobile: [
            {
              required: true,
              message: '请输入手机号码',
              trigger: 'blur',
            },
            {
              validator: checkMobile,
              trigger: 'blur',
            },
          ],
        },
        
      }
    },
    created() {
      this.getUserList()
    },
    methods: {
      async getUserList() {
        const { data: res } = await this.$http.get('users', {
          params: this.queryInfo,
        })
        if (res.meta.status !== 200) {
          return this.$message.error('获取用户列表失败')
        }
        this.userlist = res.data.users
        this.total = res.data.total
        console.log(res)
      },
      //监听每页的数据尺寸 pagesize
      handleSizeChange(newSize) {
        this.queryInfo.pagesize = newSize
        this.getUserList()
      },
      // 监听 页码值
      handleCurrentChange(newPage) {
        this.queryInfo.pagenum = newPage
        this.getUserList()
      },
      //监听switch开关状态的改变
      async userStateChange(userInfo) {
        console.log(userInfo)
        const { data: res } = await (
          `users/${userInfo.id}/state/${userInfo.mg_state}`
        )
        if (res.meta.status !== 200) {
          userInfo.mg_state = !userInfo.mg_state
          return this.$message.error('更新用户状态失败！')
        }
        this.$message.success('更新用户状态成功！')
      },
      // 监听添加用户对话框的关闭事件
      addDialogClosed() {
        this.$refs.addFormRef.resetFields()
      },
      //添加新用户
      addUser() {
        this.$refs.addFormRef.validate(async (valid) => {
          if (!valid) return
          // 可以发起添加用户的网络请求
          const { data: res } = await this.$http.post('users', this.addForm)

          if (res.meta.status !== 201) {
            this.$message.error('添加用户失败！')
          }

          this.$message.success('添加用户成功！')
          // 隐藏添加用户的对话框
          this.addDialogVisible = false
          // 重新获取用户列表数据
          this.getUserList()
        })
      },
      //编辑用户信息对话框
      async showEditDialog(id) {
        const { data: res } = await this.$http.get('users/' + id)
        if (res.meta.status !== 200) {
          return this.$message.error('查询用户失败')
        }
        this.editForm = res.data
        this.editDialogVisible = true
        // console.log(id)
      },
      //修改用户信息后的表单重置
      editDialogClosed() {
        this.$refs.editFormRef.resetFields()
      },
      //修改表单信息
      editUserInfo() {
        this.$refs.editFormRef.validate(async (valid) => {
          if (!valid) return
          //发起修改用户信息的数据请求
          const { data: res } = await this.$http.put(
            'users/' + this.editForm.id,
            {
              email: this.editForm.email,
              mobile: this.editForm.mobile,
            }
          )
          if (res.meta.status != 200)
            return this.$message.error('更新用户信息失败！')
          //关闭对话框
          this.editDialogVisible = false
          //刷新数据列表
          this.getUserList()
          //提示修改成功
          this.$message.success('更新用户信息成功')
        })
      },
      //删除用户信息
      async removeUserById(id) {
        //弹框询问是否删除
        const confirmResult = await this.$confirm(
          '此操作将永久删除, 是否继续?',
          '提示',
          {
            confirmButtonText: '确定',
            cancelButtonText: '取消',
            type: 'warning',
          }
        ).catch((err) => {
          return err
        })
        // 如果用户确认删除，则返回值为字符串 confirm
        // 如果用户取消了删除，则返回值为字符串 cancel
        //console.log(confirmResult)
        if (confirmResult !== 'confirm') {
          return this.$message.info('已取消删除')
        }
        const{data:res} = await this.$http.delete('users/' + id)
        if (res.meta.status !== 200) {
          return this.$message.error('删除用户失败！')
        }
        this.$message.success('删除用户成功！')
        this.getUserList()
      },
      async setRole(userInfo) {
        this.userInfo = userInfo
        const { data: res } = await this.$http.get('roles')
        if (res.meta.status !== 200) {
          return this.$message.error('获取角色列表失败！')
        }
        this.roleList = res.data
        this.setRoleDialog = true
      },
      //点击按钮。分配角色
      async saveRoleInfo(){
        if(!this.selectedRoleId){
        return this.$message.error("请选择要分配的角色！")
        }
        const {data : res} = await this.$http.put(`users/${this.userInfo.id}/role`,{rid:this.selectedRoleId})
        if(res.meta.status !== 200){
          return this.$message.error('更新角色失败')
        }
        this.$message.success('更新角色成功!')
        this.getUserList()
        this.setRoleDialog = false
      },
      //监听分配角色对话框的关闭事件
      setRoleDialogClosed(){
        this.selectedRoleId = ''
        this.userInfo ={}
      }
    },
  }
</script>

<style lang="less" scoped>
</style>